| angstrom unit 
 
 a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron);
 used to specify wavelengths of electromagnetic radiation
 • Syn:
 angstrom, A
 • Hypernyms:
 metric linear unit
 • Part Holonyms:
 nanometer, nanometre, nm, millimicron, micromillimeter, micromillimetre
 • Part Meronyms:
 picometer, picometre, micromicron
 
 
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